Clean up Diving in sewage Work Environment ... Print comment Open popup to share Share: share on twitter share on facebook send by e-mail more... Embed code Copy and paste the embed code above. This content was published on November 1, 2014 9:00 AMNov 1, 2014 - 09:00 One of the hardest jobs of all: diving in sewage. Gregor Ulrich shows how it's done in Winterthur? (SRF/swissinfo.ch) Neuer Inhalt Horizontal Line subscription form Form for signing up for free newsletter. Sign up for our free newsletter and get the top stories delivered to your inbox. Email address swissinfo EN The following content is sourced from external partners. We cannot guarantee that it is suitable for the visually or hearing impaired. swissinfo.ch Join us on Facebook!